Loom-shuttle.



0. G. PETZOLD.

LOOM SHUTTLE.

APPLICATION II-LED rmm, 1911.

Patented Aug. 27', 1912.

CHARLES G...PETZOLD, OF PROVIDENCE, RHODE ISLAND.

LOOM-SHUTTLE.

Specification of Letters Patent.

Patented Aug. 27,1912

Application filed February 2,1911. SeriaLNo. 606,073.

To all whom it may concern:

Be-it known that I, CHARLES G. PnTzoLD, a citizen of the United Statearesidmg at- Providence, county of Providence, State of Rhode Island, have invented an Improvement in Loom-Shuttles, of which the following description, in connection with the accompanying drawing, is a specification, like letters on the drawing representing like parts.

This invention relates toloom shuttles of that general type shown in my Patent N 0. 409,232, August 20, 1899. In said patent the shuttle spindle is removably sustained by a spindle-supporting member which is pivoted to the shuttle body and the portion. of the spindle which enters the spindlesupporting member is provided with a transverse notch that is adapted to engage a pin carried by the shuttle when the spindle is turned down into the body of. the shuttle, said pin operating to lock the spindle in place and prevent it from being withdrawn from the spindle-supporting member. In my present invention I have improved upon the construction shown in my former patent and have provided a novel device which takes the place of the pin for locking the spindle in said spindle-supporting member and have otherwise improved the shuttle, all as more fully hereinafter described and pointed out in the appended claims.

Referring to the drawings wherein I have shown a selected embodiment of my invention, Figure 1 is a top plan view of a shuttle made in accordance with the invention; Fig. 2 is an enlarged section on substantially the line a1-m, Fig. 1; Fig.3 is a View on substantially the line y-y, Fig. 2; Fig. 4 is a perspective view of the spindle; Fig. 5 is a section on the line (za -a, Fig. 2'; Fig. 6 shows an end view of the spindle on sub stantially the line b-J), Fig. 1.

The shuttle body is shown at l and is of usual shape and material. The spindle is shown at 2 and it is sustained by a spindlesupporting member 3 which is pivoted to the shuttle body at 4 as described in my above-mentioned patent. The spindle-supporting member 3 is provided with an aperture or recess to receive the end 6 of the spindle, and said spindle-supporting member is cut away on its under side as at 7 thereby to leave two bearing portions 5 and 8 which encircle the spindle at two separate points. The aperture 12 through the bearing portion 8 is provided withthe flat side 9, as shown, spindle is flattened on one side, as shown at-ll, and thus has a contourcorresponding to the aperture 12. The shuttle 13 in the form of a tened side 11 of the spindle is provided with a recess 15 adapted to receive the locking rib 14.- The end 6 of the spindle is also provided with a transverse notch 16 and the shuttle sustains a pin 17 which is adapted to enter said notch when the spindle is swun down into its operative position. When the spindle-supporting member 3 1S swung down into the dotted line position Fig. 3, the spindle can be readily removed therefrom or inserted therein, flat face 11 of the spindle side 9 of the aperture 12. only beinserted into the spindlesupporting member in one position. The spindle 2 is provided with a collar forming a shoulder which engages the spindle supporting member and limits the extent to which the spindle can be inserted into said member. When the spindle has been properly entered into the recess in the spindle-supporting member 3 then the spindle may be swung down into the full line position Fig. 2, and when in such position the flat face 11 of the spindle bears against the plate 13 and the rib 14 on said plate enters the recess 15, thus locking the spindle both from turning movement and from a withdrawing movement. the notch 16, thus doubly in position.

The spindle-supporting member 3 is acted upon by a suitable spring 18 which serves both to hold it in the full 3 and by engagement of the notch 19 therein to hold it in the dotted line position.

Owing tothe extent of the fiat surface 11 and the fact that it bears against the face of the plate 13, the spindle will be firmly held from turning or rocking movement and the rib 14 acts as an effective locking means for preventing longitudinal movement of the spindle.

The end of the spindle is provided with a head 20 in which is formed a notch 21. The purpose of this notch is to detect any improperly-wound bobbins. It sometimes occurs through a mistake in winding that and the flattened and the portion 10 of the and owing to the said spindle can At the same time the pin 17 enters locking the spindle line posit-ion Fig.

60 sustains a combined positioningand locking member plate having a locking rib 14 projecting therefrom and the flatcarried by the the yarn is wound on some particular bobbin in a direction opposite to that in which it should be, and in weaving a piece of cloth if one of these improperly-wound bobbins is used the cloth which is made from such improperly-wound bobbin will have a slightly different shade from the remaining portion of the cloth. In making goods of a fine grade, therefore, it is important that no improperly-wound bobbins should be used. The notch 21 shown in the spindle has such a shape that the thread of a properly-wound bobbin will slip over it without catching therein, while the thread of an improperly-wound bobbin will catch in it and thus be severed. The thread of a properlywound bobbin will be drawn oil from the spindle in the direction of the arrow a, Fig. 6, and will thus merely wipe over the notch, as will be readily seen. If the bobbin is wound in the opposite or wrong direction, however, the yarn will be drawn ofi from the bobbin in the direction of the arrow 6 and will obviously catch in the notch 21 and thus be severed.

Having fully described my invention, what I claim as new and desire to secure Letters Patent is 1. In a shuttle, the combination with a shuttle body, of a spindle slabbed off at one side to provide an elongated flat bearing surface extending longitudinally thereof, a spindle-supporting member provided with an aperture to receive the slabbed-off portion of the spindle, said member being cut away on its under side between its ends to form a recess, and a positioning plate shuttle body and having an elongated fiat face which occupies said recess when the spindle-supporting member is in operative position and which engages the elongated flat face of the spindle when the latter is in operative position, the portion of the aperture of'said spindle-supporting member that is in front of said recess having ,a fiat face which fits the flat face of the spindle.

2. The combination with a shuttle body,

of a spindle, a spindle-supporting member pivoted to the shuttle body and provided with an aperture to receive the spindle end, said member being cut away on its under side, a positioning plate carried by the shuttle and having a flat bearing face and a locking rib rising from said face and extending longitudinally of the shuttle, said spindle being slabbed off to form a flat bearing surface which engages the flat face of the positioning plate when the spindle is in operative position and also having a longitudinally-extending recess formed in said bearing surface to receive said rib when the spindle is in such position.

3. In a shuttle, the combination with a shuttle body, of a spindle therein having an enlarged end provided with a notch situated to engage and sever the yarn when it is unwound from the bobbin in one direction while permitting it to be freely unwound in the other direction.

at. In a shuttle, the combination with a shuttle body, of a spindle-supporting member pivoted to the shuttle body and provided with an aperture to receive a spindle end, said member being cut away on its under side between its ends to form a recess, a positioning plate carried by the shuttle body and having a flat face which occupies said recess when the spindle-supporting member is in operative position, and a spindle provided with a collar to engage said spindle-supporting member, the end of the spindle beyond the collar being slabbed off to present a flat face which bears against thefiat face of the positioning plate and which also extends into the portion of the aperture of said supporting member in front of the recess, said portion of the aperture having a flat side to fit spindle.

In testimony whereof, I have signed my name to this specification in the presence of two subscribing witnesses.

CHARLES G. PETZOLD.

Witnesses:

FRANK E. STILLWELL, SMITH OGDEN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

